Provides an elegant DSL in Ruby for performing backups on UNIX-like systems.

Backup is a system utility for Linux and Mac OS X, distributed as a
RubyGem, that allows you to easily perform backup operations.
Backup has built-in support for various databases, storage
protocols/services, syncers, compressors, encryptors and notifiers which
you can mix and match. It was built with modularity, extensibility and
simplicity in mind.